Quick answer: 10 Chinese theanine brands and companies are listed here, including DOCTOR'S BEST, ESMOND NATURAL and GNC, with registered company names and official websites. Updated 21 Oct 2026.
International theanine brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
OLLY OLLY
Registered as 联合利华(中国)投资有限公司 in 1994.
- Theanine
- Children's candies
- Lutein
- Melatonin
Why it ranks here: registered legal entity on file; phone published; operating since 2013.
More Theanine brands and companies
| Brand | Registered company | Website |
|---|---|---|
| DOCTOR'S BESTDOCTOR'S BEST | 厦门金达威集团股份有限公司 | drbvitamins.com |
| ESMOND NATURALESMOND NATURAL爱司盟 | 美国爱司盟天然健康食品制造公司 | esmondnatural.com.cn |
| GNCGNC健安喜 | 健安喜(上海)贸易有限公司 | gnc.com.cn |
| NowNow诺奥 | 美国Now Foods公司 | nowfoods.com |
| SwisseSwisse斯维诗 | 健合(中国)有限公司 | swisse.com.cn |
| ORGANIKAORGANIKA奥加尼卡 | 加拿大ORGANIKA健康产品公司 | — |
| PipingRockPipingRock朴诺 | 环球康品(北京)电子商务有限公司 | — |
| Sports ResearchSports Research | 美国Sports Research保健品公司 | — |
| Tian Ji Kang Cheng天吉康晟 | 四川吉晟生物医药有限公司 | — |
Frequently asked questions
How many theanine manufacturers and suppliers in China are listed here?
10 companies are listed for theanine (茶氨酸). Full ranked profiles are being prepared.
Where are China's theanine manufacturers located?
Among profiled companies: Shanghai (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 6 have an official website and 0 publish an email address.